Fears over ton-up drivers on Shropshire and Mid Wales roads
Seven motorists in Shropshire and Mid Wales have been clocked at more than 100 miles per hour.
The incidents, which saw one driver hit 121mph, put other road users in "significant danger," a road safety group warned.
Sarah Sillars, chief executive officer of the Institute of Advanced Motorists, said: "Those guilty of this level of excessive speeding are clearly not be deterred by a short ban or fine.
"Their minds need to be concentrated to appreciate that they are putting other road users in danger by acting in this way."
Motorcyclists in the region are now being urged to attend courses to improve their riding skills in a bid to cut deaths and serious injuries.
Both Powys County Council and West Mercia Police have launched classes to improve safety on the region's roads.
The Institute of Advanced Motorists has found that five motorists were caught doing more than 100mph in Mid Wales in 2014.
Another driver was caught driving at 118mph on the A41 at Tern Hill, near Market Drayton, while another was clocked at 121mph on the A5 at Halton, near Chirk.
John Evans, Powys County Council spokesman, said: "With 3,400 miles of road, Powys has the largest road network in Wales and motorcyclists come from far and wide to enjoy our rural roads.Last year six motorcyclists died in traffic collisions.
Anna Higgins, communications manager at the Safer Roads Partnership, said: "We'd particularly welcome new or inexperienced riders and feel that they would really benefit."
Dyfed-Powys Police Chef Constable Simon Prince, said he is worried about the number of accidents involving motorcyclists. He said: "This year has seen a number of motorcyclists return to North and Mid Wales to make the most of the scenery and facilities that Wales has to offer."
